Password Strength Analyzer (Python + Tkinter)

Project aim

A small beginner-friendly cybersecurity mini project that checks how strong a password is and gives simple tips to improve it. It uses the real-world zxcvbn password strength checker.

Features

• User enters a password
• Checks if it is Weak, Medium, or Strong (using zxcvbn)
• Shows zxcvbn score (0 to 4)
• Analyzes:
  • password length
  • uppercase letters
  • lowercase letters
  • numbers
  • special characters
• Shows feedback + suggestions to improve the password
• Basic password generator button
• Password strength progress bar
• Copy password button (copies the current password)
• Estimated crack time display (from zxcvbn)
• Common password warnings (from zxcvbn feedback)
• Explains why the password is weak (reasons section)
• Simple history list for generated passwords
• Basic dark mode toggle
• Save the analysis result as a text file
• Show/hide password option

Technologies used

• Python 3
• Tkinter (built-in GUI library)
• zxcvbn (password strength checking library)

Installation steps

1. Make sure you have Python 3 installed.
2. Create a virtual environment (recommended):

python3 -m venv .venv

3. Activate it:

source .venv/bin/activate

4. Install the library:

pip install zxcvbn

How to run the project

1. Open a terminal in this folder.

2. Create virtual environment:

python3 -m venv .venv

That’s it — a small window will open and you can test passwords.